Primitive arthropods, Biology

Assignment Help:

Primitive Arthropods

The primitive arthropods, Onychophora (for example Peripatus) have a series of paired legs which are not jointed but have a ringed appearance because of the presence of rows of papillae on them. Each leg consists of two parts, a conical proximal part along with their extrinsic muscles, and a small distal part comprising a pair of claws.

183_Primitive Arthropods.png

Figure: Peripatus lateral view of head

The limbs are protracted and retracted. Using these legs, and through extension and contraction of the body for working the legs they crawl. While a segment is extended, the legs are lifted and moved forward; subsequent effective stroke provides the animals a pushing force.


Related Discussions:- Primitive arthropods

Programmes directed towards the common crop plants, Programmes directed tow...

Programmes directed towards the common crop plants These programmes can be directed towards incorporating the following traits among common crop plants. Non-photo

Explain about the biofertilizers, Explain about the Biofertilizers Biof...

Explain about the Biofertilizers Biofertilizers, are the cultures of microorganisms used for inoculating seed or soil or both under ideal conditions to increase the availabilit

Determine possible polypeptides, a) The image above is part of a DNA sequen...

a) The image above is part of a DNA sequencing gel. Assuming this is the DNA coding strand and you are reading 5' -> 3' what are ALL the possible polypeptides this sequence cou

What would be the progeny of these crosses, Suppose that you are raising Do...

Suppose that you are raising Downton wombats, carefully because they bite when teased.You notice that some of your wombats have white spots, whereas others have solid coats. What t

Female reproductive disorders-hydramnios, Hydrops amnii (Hydramnios) H...

Hydrops amnii (Hydramnios) Hydramnios is a rare condition. Excessive accumulation of amniotic fluid can be the result of foetal dysgenesis and agenesis. The increase of amniot

Describe the formation of fibrous tissue where it not exist, Which of the b...

Which of the below terms is used to describe the formation of fibrous tissue where it generally does not exist? Is it: a) Fibrosis b) Fibrogenesis c) Fibrositis d) Non

Plant responses., Why do climbers such beans plants coil up a post?

Why do climbers such beans plants coil up a post?

Acetylcholine - long term potentiation, Acetylcholine, a well known neurotr...

Acetylcholine, a well known neurotransmitter, plays a critical synaptic role in the initial formation of memory. Chemical blockage of the acetylcholine receptors makes it harder to

Explain adverse effects of amantadine, Adverse Effects of amantadine  ...

Adverse Effects of amantadine  Amantadine may cause anorexia, nausea, peripheral edema and, particularly in the elderly, minor CNS effects such as nervousness, anxiety, insomn

Procedure of the second interphase period, Q. What are the events that mark...

Q. What are the events that mark the end and the beginning of the second interphase period and what happens in the cell in this period? The second interphase period is the S, i

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd